@northfoxgroup/node-utils

@northfoxgroup/node-utils is a utility package designed for handling JWT (JSON Web Tokens) in Node.js applications. It provides a straightforward way to manage JWTs, including setting up secret tokens and custom functions for authorization checks.

Installation

To install the package, use npm or yarn:

npm install @northfoxgroup/node-utils
# or
yarn add @northfoxgroup/node-utils

Usage

Basic Setup

You can set up the JWT secret token with the setup function:

import { jwtChecker } from "@northfoxgroup/node-utils";

jwtChecker.setup(() => "your-secret-token");

Custom Function

You can also define a custom function to perform additional checks during JWT validation. This function should return true to allow access and false to deny it:

import { jwtChecker } from "@northfoxgroup/node-utils";

const customFunction = async (user) => {
  if (user.email === "[e-mail]") {
    return true;
  } else {
    return false;
  }
};

jwtChecker.setupCustomFunction(customFunction);

Middleware Usage

Use the checker middleware to protect routes and ensure valid JWTs:

import express from "express";
import { jwtChecker } from "@northfoxgroup/node-utils";

const router = express.Router();

router.get("/secure-route", jwtChecker.checker, (req, res) => {
  // This route is protected by JWT validation
  res.json({ message: "You have access!" });
});

export default router;

API Reference

setup(getSecretCallback: () => string)

• This function sets the JWT secret token.

getSecret()

• Retrieves the JWT secret token.

setupCustomFunction(customFunc: any)

• Sets a custom function for additional authorization checks.

checker(req, res, next)

• Middleware for protecting routes with JWT validation.

License

This package is distributed under the MIT License. See the LICENSE file for details.

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